https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/ Guitar Noise Discussion Board en-US Thu, 04 Jun 2026 10:28:34 +0000 wpForo 60 https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-97852 Mon, 11 Apr 2005 18:14:40 +0000 Guitar Repair and Maintenance kingpatzer https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-97852 https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-97818 Mon, 11 Apr 2005 07:08:03 +0000 Guitar Repair and Maintenance mark-taylor https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-97818 https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-97815 Mon, 11 Apr 2005 06:18:03 +0000
The tubes themselves will sometimes develop internal, intermittent arcs. Do some tube swapping. Start at the preamp end of the amp and pull a tube, listen, pull a tube, listen. When you find one where pulling it makes the popping stop and a new tube makes it quit completely, you're done.

Arcing power tube socket. The B+ may be arcing across the surfaces of the output tube sockets themselves. This is often the case when an amplifier has a lot of dust and dirt inside it. Intermittent breakdown of coupling cap or a popping resistor, intermittent breakdown of output transformer or choke, broken resistor or capacitor or R/C lead/ wire, heat from resistor or output tube melting solder.

You can sometimes leave the amplifier turned on and turn out or dim the lights and see arcing happining. These are a few things to look for.

Joe]]> Guitar Repair and Maintenance forrok_star https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-97815 https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-97794 Mon, 11 Apr 2005 02:35:19 +0000 Guitar Repair and Maintenance art&lutherie https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-97794 https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-8357 Mon, 11 Apr 2005 01:45:33 +0000 Guitar Repair and Maintenance DoubleWammy https://guitarnoise.forum/guitar-repair-and-maintenance/amp-crackle/#post-8357